‘Science Magazine – December 13, 2024: The new issue features ‘2024 Breakthrough Of The Year’…

The long shot

An injectable HIV drug with a novel mechanism shows remarkable ability to prevent infection

Mantle waves sculpt the continents

When the forces of plate tectonics tear continents apart, it’s an incredibly violent process, unfolding in slow motion. It was also thought to be very local: Magma from hot, rising mantle rock seeds volcanoes along the rift zone, while the far-removed cold interiors of continents remain intact.

Multicellularity came early for ancient eukaryotes

Microscopic algalike fossils from China reported early this year astounded evolutionary biologists with their extreme age. Dated at 1.6 billion years old, the specimens suggest one of the hallmarks of complex life—multicellularity—arose far earlier than previously thought.

A new type of magnetism emerges

For 98 years, physicists knew of two types of permanently magnetic materials. Now, they’ve found a third. In familiar ferromagnets such as iron, unpaired electrons on neighboring atoms spin in the same direction, magnetizing the material so that, for example, it sticks to a refrigerator. Antiferromagnets such as chromium have zero overall magnetism, but they possess an atomic-scale magnetic pattern, with neighboring electrons spinning in opposite directions. Novel altermagnets—hypothesized 5 years ago—share aspects of both. 

‘Science Magazine – November 29, 2024: The new issue features ‘Programmed T Cells’ – Targeting the brain and other tissues to treat cancer and inflammation…

Programming tissue-sensing T cells that deliver therapies to the brain

‘Brutal’ math test raises the bar for AI

Model-stumping benchmark shows human experts remain on top—for now

Beneath Antarctica’s ice, a fiery future may await

Researchers probe volcanoes’ response to a changing world

War-torn Ukraine is breeding drug-resistant bacterial strains

Urgent action underway to bolster treatments and prevent dangerous microbes from spilling across borders